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2022011201220 = 2235295367893677
BaseRepresentation
bin11101011011001001010…
…000100110011011000100
321011022011102210201121220
4131123021100212123010
5231112034331414340
64144522113240340
7266041215425253
oct35331120463304
97138142721556
102022011201220
1170a59167807a
12287a675630b0
131188a08088aa
146dc19d0879a
15378e55beed0
hex1d6c94266c4

2022011201220 has 384 divisors, whose sum is σ = 6126147417600. Its totient is φ = 497374445568.

The previous prime is 2022011201219. The next prime is 2022011201299. The reversal of 2022011201220 is 221021102202.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 2022011201220.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 549906022 + ... + 549909698.

It is an arithmetic number, because the mean of its divisors is an integer number (15953508900).

Almost surely, 22022011201220 is an apocalyptic number.

2022011201220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2022011201220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3063073708800).

2022011201220 is an abundant number, since it is smaller than the sum of its proper divisors (4104136216380).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2022011201220 is a wasteful number, since it uses less digits than its factorization.

2022011201220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3927 (or 3925 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 2022011201220 its reverse (221021102202), we get a palindrome (2243032303422).

The spelling of 2022011201220 in words is "two trillion, twenty-two billion, eleven million, two hundred one thousand, two hundred twenty".